linux-kernel - [PATCH 2/3] arm64: dts: mt8189: Add scp node

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Message-ID: <20250729023125.9036-3-huayu.zong@mediatek.com>
Date: Tue, 29 Jul 2025 10:31:12 +0800
From: Huayu Zong <huayu.zong@...iatek.com>
To: Bjorn Andersson <andersson@...nel.org>, Mathieu Poirier
	<mathieu.poirier@...aro.org>, Rob Herring <robh@...nel.org>, Krzysztof
 Kozlowski <krzk+dt@...nel.org>, Conor Dooley <conor+dt@...nel.org>, Matthias
 Brugger <matthias.bgg@...il.com>, AngeloGioacchino Del Regno
	<angelogioacchino.delregno@...labora.com>, Tinghan Shen
	<tinghan.shen@...iatek.com>
CC: <linux-remoteproc@...r.kernel.org>, <devicetree@...r.kernel.org>,
	<linux-kernel@...r.kernel.org>, <linux-arm-kernel@...ts.infradead.org>,
	<linux-mediatek@...ts.infradead.org>,
	<--cc=Project_Global_Chrome_Upstream_Group@...iatek.com>, Huayu Zong
	<huayu.zong@...iatek.com>
Subject: [PATCH 2/3] arm64: dts: mt8189: Add scp node

Add scp node for mt8189.

Signed-off-by: Huayu Zong <huayu.zong@...iatek.com>
---
 arch/arm64/boot/dts/mediatek/mt8189-evb.dts | 17 +++++++++++++++++
 arch/arm64/boot/dts/mediatek/mt8189.dtsi    | 11 +++++++++++
 2 files changed, 28 insertions(+)

diff --git a/arch/arm64/boot/dts/mediatek/mt8189-evb.dts b/arch/arm64/boot/dts/mediatek/mt8189-evb.dts
index e5d9ce1b8e61..39cd56b31ca0 100644
--- a/arch/arm64/boot/dts/mediatek/mt8189-evb.dts
+++ b/arch/arm64/boot/dts/mediatek/mt8189-evb.dts
@@ -13,8 +13,25 @@ / {
 	chosen: chosen {
 		stdout-path = "serial0:115200n8";
 	};
+
+	reserved_memory: reserved-memory {
+		#address-cells = <2>;
+		#size-cells = <2>;
+		ranges;
+
+		scp_mem_reserved: scp@...00000 {
+			compatible = "shared-dma-pool";
+			reg = <0 0x50000000 0 0x2900000>;
+			no-map;
+		};
+	};
 };
 
 &uart0 {
 	status = "okay";
 };
+
+&scp {
+	status = "okay";
+	memory-region = <&scp_mem_reserved>;
+};
diff --git a/arch/arm64/boot/dts/mediatek/mt8189.dtsi b/arch/arm64/boot/dts/mediatek/mt8189.dtsi
index 2444c3e553ec..b70397b9ef6c 100644
--- a/arch/arm64/boot/dts/mediatek/mt8189.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt8189.dtsi
@@ -371,5 +371,16 @@ uart0: serial@...01000 {
 			clock-names = "baud", "bus";
 			status = "disabled";
 		};
+
+		scp: scp@...00000 {
+			compatible = "mediatek,mt8189-scp";
+			reg = <0 0x1c400000 0 0x60000>,
+			      <0 0x1cb20000 0 0xe0000>;
+			reg-names = "sram", "cfg";
+			interrupts = <GIC_SPI 516 IRQ_TYPE_LEVEL_HIGH 0>;
+			status = "disabled";
+			clocks = <&vlp_cksys_clk CLK_VLP_CK_SCP_SEL>;
+			clock-names = "scp_sel";
+		};
 	};
 };
-- 
2.45.2